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Finding the Third Proportional to 14,291 and 20,878

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Solution

The third proportional to 14,291 and 20,878 is: 30,501.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,291 : 20,878 = 20,878 : x
  2. Step 2: Convert to fraction form
    14,291/20,878 = 20,878/x
  3. Step 3: Cross multiply
    14,291x = 20,878 × 20,878
  4. Step 4: Simplify right side
    14,291x = 435,890,884
  5. Step 5: Solve for x
    x = 435,890,884/14,291
  6. Step 6: Final answer
    x = 30,501.08

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.